The Smart Game Format (SGF) is a computer file format used for storing records of board games. Go is the game that is most commonly represented in this format and is the default. SGF was originally created under a different name by Anders Kierulf for his SmartGO program. The current version of the format is 4. Games stored in SGF format can easily be emailed, posted or processed with text-based tools. Most Internet Go servers and Go software from 1990 support this format.